File content as of revision 8:5ea891c7d1a1:

/*******************************************************************************
* Copyright (C) Maxim Integrated Products, Inc., All Rights Reserved.
*
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* OTHER DEALINGS IN THE SOFTWARE.
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* Products, Inc. Branding Policy.
*
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*******************************************************************************/

#include "I2CMaster.hpp"

namespace MaximInterfaceMbed {

using namespace MaximInterfaceCore;

Result<void> I2CMaster::start(uint_least8_t address) {
  i2c->start();
  return writeByte(address);
}

Result<void> I2CMaster::stop() {
  i2c->stop();
  return none;
}

Result<void> I2CMaster::writeByte(uint_least8_t data) {
  return (i2c->write(data) == 1) ? makeResult(none) : NackError;
}

Result<void> I2CMaster::writePacket(uint_least8_t address,
                                    span<const uint_least8_t> data,
                                    DoStop doStop) {
  const Result<void> result =
      (i2c->write(address, reinterpret_cast<const char *>(data.data()),
                  data.size(), doStop != Stop) == 0)
          ? makeResult(none)
          : NackError;
  if (doStop == StopOnError && !result) {
    i2c->stop();
  }
  return result;
}

Result<uint_least8_t> I2CMaster::readByte(DoAck doAck) {
  return i2c->read(doAck == Ack);
}

Result<void> I2CMaster::readPacket(uint_least8_t address,
                                   span<uint_least8_t> data, DoStop doStop) {
  const Result<void> result =
      (i2c->read(address, reinterpret_cast<char *>(data.data()), data.size(),
                 doStop != Stop) == 0)
          ? makeResult(none)
          : NackError;
  if (doStop == StopOnError && !result) {
    i2c->stop();
  }
  return result;
}

} // namespace MaximInterfaceMbed